Posted by DUTYTAC on Oct 14th 2026
CR123A vs Rechargeable Weapon Light Batteries
Weapon lights
CR123A or rechargeable?
Your weapon light is only as good as its battery. Here is how disposable CR123A lithium cells compare with rechargeable packs.
| CR123A lithium (disposable) | Rechargeable (USB / Li-ion pack) | |
|---|---|---|
| Shelf life | Long; good for storage and backup | Self-discharges; needs regular charging |
| Cold weather | Strong performance | Varies by cell |
| Cost over time | Buy new every time | Cheaper over many cycles |
| Swap speed | Drop in fresh cells anywhere | Need a charged spare or charger |
| Best for | Duty backup, stored home-defense guns | Range and training guns you use often |
Safety first
Only use rechargeable batteries approved by your light's manufacturer. Some rechargeable 123-size cells run at higher voltage and can damage lights not rated for them.
Batteries we carry
Key takeaways
- CR123A: best for storage, backup and cold.
- Rechargeable: cheaper if you train a lot.
- Use only maker-approved rechargeables.
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